Weldless-chain machine



(Model.) 2 Sheets-Sheet 1.

M. J ACKER.

WBLDLBSS CHAIN MACHINE.

No. 339,781. Patented Apr. 13, 1886.

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(Model.) y 2 sheets-sheet 2.'

M. J AGKER.

WELDLESS CHAIN MACHINE.

No. 339,781. Patented Apr. 13, 1886.

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UNITED STATES PATENT OFFICE.

MAXIMILIAN JACKER, OF FLORENCE, IVISCONSIN.

wELDLEss-CHAIN MASI-HNE.

SPECIFICATION forming part oi' Letters Patent No. 339,781, dated April 13, 1886 Application filed December 13, 1884. Serial No. 150,328. (Model.)

To all whom it may concern:

Be it known that I, MAXIMILIAN J ACKER, a citizen of the United States, residing at Florence, inthe county. of Florence and State of Visconsin, have invented a new and useful Improvement in Machines for Manufacturing Veldless Chains of Steel, Iron, or other Material, of which the following is a specification.

This invention relates to Acertain improvements in the manufacture of chains; and it has for its object to form the interlocking links from a single bar of metal, as more fully hereinafter specified. This object I attain by tlie means illustrated in the accompanying drawings, in which- Figure 1 represents a view, partly in side elevation and partly in section, showing my improved machine complete with the gearing for driving the rolls in unison with each other. Fig. Qrepresents adetached view vof one of the rolls; Fig. 3, a detached view of a section ot the chain; Fig. 4, a side elevation showing a portion of two of the die-rollers employed to form the chain, and Fig. 5 a detached view of one of the die-rollers employed in the formation of the chain.

rlhe letters a c indicate a series of four dierollers, which are set in planes at right angles to each other, and which are mounted upon shafts f g h k, journaled in suitable bearings in the frame ofthe machine. These rollers are beveled at their peripheries, so as to Initer7 at theirjunction, as shown in Fig. l of the drawings. The peripheries of the rollersat their adjoining beveled edges have formed in them semicircular recesses or matrices m, which act as dies in the formation of the chain, as more fully hereinafter specified.

The shafts f g h la p r s and the cog-wheels and pinions tu connect with the main drivingshaft c by means of intergearing wheels, by which they are all driven in unison, so as to bring the dies together in proper relative positions to swage the links of the chain.

The operation of my invention is as follows: The parts being arranged as described, a rotary movement is imparted to the rollers by power applied to the shaft f. The blank, which is ot' suitable size, is fed in between the rollers at the front of the machine, and is carried forward between them automatically. In passing between the rollers the dies on their beveled peripheries partially press or swage ont the linksv alternately at right angles to each other, leaving the pressed blank after passing between them in such shape that the links may be easily separated from the weak connecting parts by tumbling the blanks in a rotating cylinder,\vhich, besides breaking the connecting webs,will linish the connectinglinks of the chain and polish the same, as metallic shot and other articles are finished and polished. Y

It will be seen that the links as thus formed will be all integral or a part of the original blank, and will require no welding, while the facility and rapidity with which the chain may be iliade will materially reduce the cost of man n fact u re.

Having thus described my invention, what I claim is- The combination of the beveled rollers arranged to Initer at their junction and provided with aseries of curved matrices at their peripheries, the ends of the matrices on one of the rollers being opposite the centers of the matrices on the opposite roller, the rollers being arranged so that the matrices will retain these relative positions as the rolls are rotated, substantially as specified.

MAXIMILIAN JACKER.

Witnesses:

R. W. MARS, A. M. PINTO. 

